Usage Guide: Constants
The **const** declaration creates a read-only reference to a value. It does not mean the value it holds is immutable, only that the variable identifier cannot be reassigned.
const AGE = 30;
// AGE = 31; // ❌ Error: Assignment to constant variable.
// AGE = 31; // ❌ Error: Assignment to constant variable.
Block Scope
Like `let`, constants only live within the `` block where they were created. This helps prevent accidental global variable errors.